Improvement in grain-separators



H. H. MAY. Grain-Separator.

No. 212,031. Patentedfeb. 4,1879.

IN VENTR l VBY ATTORNEYS.

N.PI'ERS, FMOTOUTHOGRAFHER, WASHINGTON. RC.

NITED BATES HENRY H. MAY, OF NEW ALBIN, IOWA.

IMPROVEMENT IN GRAIN-SE-PARATORS.

Specification forming part of Letters Patent No. 212,031, dated February4, 1879, application filed September 17, 18,78.

To all whom it may concern:

Beit known that I, HENRY H. MAY, of New Albin, in the county ofAllamakee and State of Iowa, have invented a new and Improved Oockle andGrain Separator, of which the following is a specication:

The object of my invention is to furnish an apparatus for separatingoats, cockle, chan", Src., from wheat, and to deliver them eachseparately; also, to clean seed-wheat, for removal of the shrunken andbroken grains.

In the drawings, Figure l is an elevation of the apparatus at one side,showing the mechanism for shaking the screens. Fig. 2 is an elevation atthe side opposite to Fig. 1. Fig. 3 is a vertical longitudinal section,and Fig. 4 is an elevation of the front, of the apparatus, partly insection.

Similar letters of reference indicate corresponding parts.

a a is the supporting frame-work of the machine. This is provided withsides b and front board, c, to form a rectangular box for the screens. dis a hopper at the top otl the frame a, and c is a slide in the hopperd, for regulating the quantity of grain passing from the hopper. d is aboard for spreading the grain as it runs from the hopper. fis a frame,hung inside of the main frame a by links g from the sides b, so that itmay be vibrated, as herein after described.

The frame f carries the first or oat screen, h, and the screenguard z',for taking out chaff and smut. The screen h consists of three sheets ofperforated metal, arranged at an inclination, one above the other, ashort distance apart. The perforations of these screens are of a size topermit the passage of the wheat and smaller grains, but retain the oats,and the perforations of the three sheets are not in line vertically, sothat if the oats should pass through the upper perforated sheets theywill be stopped by the under ones. The oats fall from the end ofthescreen h into a spout, le, across the front of the machine, upon thesecond vibrating frame, m.

The screen-guard t' consists of a metal plate having the center portioncut out from the lower end to near the upper end and the edges bent up,so that the plate forms a spout at each side of the appara-tus. llhescreen-guard t' is placed in the upperframeabove the oatscreens, andwith the upper edge near enough to the lower end of the feed-board tocatch the light stuff, straws, chaff, cheat, Snc., as they fall from thefeed-board and are blown farther than the wheat or other grain, which isheavier. The object is to remove the light stuff from the heavier grainbefore it reaches the screens, so that they shall not be liable to bechoked up, and so as to leave the oat-screens free to work upon andseparate the oats. tion of thc guard i is cut out, so that the screensmay be visible to the operator and allow him to notice whether the feedis too fast or otherwise.

m is the second shaking frame, below the frame j', hung by links j" atthe outside of the apparatus. The frame m carries the cocklescreen n,seed-wheat screen o, and main wheatscreen p.

The cockle-screen n consists of a perforated sheet of metal attached toside bars, and held in the frame m in an inclined position beneath theupper part of the screen h. The perforations in u are of a size to allowcockle to pass but retain wheat, and the wheat runs off thecockle-screen upon the seed-wheat screen o. The cockleseeds pass throughthe perforations in fn, and fall upon an apron, r, attached to the underside of the cockle-screen, which apron is inclined across the machine,so that the cockle will run to one side and be discharged by the sidespout, s. (See Figs. 2 and 4.)

- The screen u is to be tittedremovably in the frame m, to allow of itsremoval and the substitution of a finer screen for cleaning grassseed.vThe seed-wheat screen o is fitted in the frame m to allow of itsremoval when not required for use. The wheat falls from the screen s thesame direction as o, and discharges at the back of the machine.

In cleaning grain for market, the screen o is not necessary. The wheat,in that case, will The central por- ,Y

fall from the cockle-screen az directly upon the main screen p and bedischarged at the rear, while the dust and particles of dirtnot removedby the blast from the blower will fall through the screen p.

The blower l is upon a shaft, q, tted in bearing at the back of theseparator, and the blower-case q is attached to the main frame u of themachine. The blower is revolved by a spur-wheel, r, on shaft q, meshingwith a gear, r', on a shaft, s, which is supported in bearings s on theframe a.

The shaft s may have a crank-handle, t, as shown, cr a pulley forconnecting with power.

The devices. for shaking the frames f and m are shown in Fig. 1. u u arestirrup-formed cranks upon the opposite ends of a short vertical shaft,which is held in bearin 'U on the frame a, and al is asmall pulley keyedupon the shaft. fw is a rod connected to the frame f, and to theadjustable crank-pin y, which is set back and forth in a slot extendingacross the axial line of the shaft. w is a rod for the frame m,connected to the crank-pin y. 112 is a belt from the pulley el to alarge pulley, o3, on the shaft q of the blower.

It will be seen that the oats are rst separated from the wheat anddelivered, so that -they are in condition for feeding horses wit-houtfurther cleaning, and as the wheat passes over the different screens itis separated from thc cockle and other refuse, and nally delivered ingood condition.

I do not limit myself to the described form of screens, as screenssuitable for doing the same work may be substituted in their place.

By virtue of the peculiar form of the slotted stirrups or double crankswhich are formed on the opposite ends of the shaft of the pulley ful,the throw or distance of reciprocation of the two shoes can beindependently regulated by simply shifting the crank -pin y. They canalso be made at will to move in the same oriu opposite directions, asdesired. Having thus fully described. my invention, I claim as new anddesire to secure by Letters Patent- 1. In grain-separators, thecombination, with the blower Z and vertical rotary shaft, provided atopposite ends with the slotted stirrups, of the two independently-movingscreen-frames fm, adjustably connected to said stirrups, the framefprovided with the screens h and guard i, an d the latter withoppositely-inclined screens n and 0p,the screen o having spout o', asshown and described.

2. The vertical rotary shaft a, provided with a stirrup at each end,slotted, and having a crank-pin adjustable in cach of said slots withrespect to the axis of shaft, as and for the purpose specified.

3. The vertical shaft having cranks uu' and pulley v1, the rod w,connected with an adjustable crank-pin, y, the rod w', connected with anadjustable crank-pin, yf, and the pulley o3, connected by belt withpulley el, in combination with the frames j' m, as and for the purposespecified.

HENRY H. MAY. lVitnesses:

O. H. MARYATT, JACOB FrrsoHEN.

